Spool



Patented June 4, 1935 UNITED STATES sPooL` Eimer o.. Eustmm and William P. Hicks, Webster Groves, Mo., assignors to Sefton National Fibre Can Co., Maplewood, Mo., a corporation of Delaware Application July 4, 1931, Serial No. 548,720

2 Claims.

Our invention relates to a spool construction designed more especially for use by the Wire and textile industries and upon the hub tube of which, electrical Wires, textile or similar goods are adapt- 5 ed to be Wound for shipment, and to the method f making the spool.

The primary object of our invention is to provide an all fibrous spool having a hub tube, a spindle tube and flange heads.

A further and essential object of the invention resides in swaging, curling or rolling over the ends of the tubes against the outer faces of the flange heads for securing the flange heads to the ends of the tubes, thus obviating the necessity of l using separate fastening devices for such purpose.

A still further object of the invention resides in the construction of a spool of the class indicated, which will be light and strong, and consist of the fewest possible parts, all of which can be easily assembled, and thus provide a spool which will prove highly e-ilicient for the purpose intended and comparatively inexpensive in the cost of manufacture.

With the above and other objects in view, the invention consists in the novel features of construction, arrangement and combination of parts hereinafter more fully described and nally pointed out in the claims hereto appended.

Referring to the accompanying drawing forniing a part of this specification, wherein like characters of Areferez'ice denote similar parts throughout the severalV views:

Fig. l is a perspective View of a spool embody- 35 ing the features of my invention.

Fig. 2 is a perspective View of the hub tube of the spool and upon which goods are adapted to be wound.

Fig. 3 is a perspective view of the spindle tube i0 of the spool.

Fig. 4 is a longitudinal sectional view of the spool taken on the line 4 4 of Fig. l.

Fig. 5 is a plan view of one of the end flange heads of the spool.

i5 Fig. 6 is a view showing the assembled spool parts interposed between two rotating heading dies prior to simultaneously rolling or turning over of the ends of the two spo-ol spindles for securing the parts together.

Fig. 7 is a View similar to Fig. 6 showing the rotatable heading dies simultaneously rolling,

or turning over the ends of the two spool spindles.y

In carrying out the aim of our present invention, all the parts we employ are a fibrous inner 55 spindle tube l adapted to be mounted upon an arbor, as indicated in Fig. 4, a fibrous outer hub tube 2 upon which goods are adapted to be Wound and unwound therefrom and a pairof fibrous spool end flange heads designated 3.

The spindle tube l and hub tube 2 are each 5 cylindrical and tubular inform and are preferably made inthe same manner as the well known paste board, or paper tubes, which art is well known and therefore believed unnecessary to further eX'- plain in this application. l0

The flange heads 3, which are preferably flat and circular in form, may be made from the same fibrous material as the spindle tube I and hub tube 2, but can be made' from other brous material of a'harder andless flexible nature, if so 15 desired.

The spindle tube I and hub tube 2 are both, preferably, of the same length and they may be made in any desired length, and the flange heads 3 can be made of any desired thickness and diameter.

The hub tube 2 has its wall, at opposite ends thereof, cut away, or recessed, as at 4, ina piurality of places to provide the spaced curved end faces 5 and to provide three triangularly disposed arcuately shaped tongues 6 extending beyond the end faces of the outer spindle. The length of the tongues 6 are preferably somewhat longer than the thickness or gauge of the flange heads 3. The tongues 6 are transverselyconcaVed-conveXed and of a Width equal to the length of the end fa-ces 5 of the hub tube."

The flange heads 3 are each-provided with a central opening l of a diameter equal to the outer diameter of the inner spindle tube, and the inner diameter of the spindle tube is, for commercially practical purposes, of a diameter that will receive f the arbor upon which the spool is mounted for rotation therewith, or thereupon. Each flange head 3 is also provided with three triangularly disposed arcuately shaped slotted openings 8 concentrically arranged outside the central opening 'l and arcuately shaped to conform to the shape of the tongues 6 of the ends of the hub tube 2. the slotted openings 8 correspond in number to the number of fingers 6 formed from the wall of the outer spindle and extending beyond the spaced end faces 5 of the hub tube 2. y'

The method of assembling, or manufacturing 0 the spool after the spindle tubes and flange heads f have been made, consists in first mounting the flange heads 3 on the fingers 6 of the hub tube 2 by causing the fingers 6 to pass through the slotted openings 8 of each flange head with the free ends of the ngers projecting beyond the outer faces of the flange heads 3, as shown in Fig. 6.

Next, the inner spindle tube I is inserted through the central opening 'I of the two flange heads 3 with the ends thereof projecting beyond the outer faces of the flange heads 3 the same distance as do the free ends of the ngers 6 of the hub tube 2.

Now, the assembled parts of the spool arepositioned between two suitable reverse rotating chucks, or heading dies designated B and C provided in the tube engaging faces with the concentrically arranged annular grooves a and b, respectively. The lower heading die C -is movable toward the upper heading die B with the asu sembled spool interposed therebetween and the ends of the spindle tube are adapted to engage in the inner heading die grooves a,.and the ends of the lingers 6 of the hub tube 2 are adapted to engage in the outer heading die grooves b. When the assembled spool is thus positioned between the Vheading dies with the ends of the spindles engaging in facial grooves thereof, it will be observed that as the heading dies are moved toward each other so that they will curl, or roll over the free projecting ends of the spindle tube I, as at 9, so as to cause the curved over end to tightly engage the outer faces of the ange heads 3 adjacent the central opening 'I thereof, and simultaneously therewith, the heading dies will curl or roll over, as at I0, the free projecting ends of the tongues 6 of the hub tube and force the curved over ends I0 into tight contact with the` outer faces of the flange heads 3 adjacent the outer edges of the concentrically arranged slotted openings 8 therein, thus securing the flange heads of the tubes, as is manifest. A

From the above operation, it is apparent that the ange heads 3 are securely locked between the spaced end faces 5 ofthe hub tube 2 and the curled over ends of the tongues 6 thereof, as well as the curled over ends of the spindle tube I, thus preventing any possible displacement of the flange heads relative to the tubes, or of the tubes relative to each other.

The rolled over ends of the spindle tube I and the ends of the ngers 6, may, or may not be provided with a coat of suitable adhesive to further `insure the locked position of the ange heads 3 to the ends of the tubes, designated I and 2.

The many advantages of the herein described invention will readily suggest themselves to those skilled in the art to which it appertains.

From the foregoing description, it is evident that a simple device for this purpose has been disclosed, but it is to be understood that we do not desire to restrict, or limit ourselves to the very details of the construction shown and described, which is merely illustrative, it being obvious that changes, not involving the exercise of invention, may be made without conflicting or departing from the spirit of the invention within the scope of the appended claims.

`What we claim is:

1. A spool having only, in combination, an all paper stock spool hub having its ends prowitha plurality of cutaway portions to form three triangularly disposed arcuatelyshaped projections beyond the ends of the hub, an all paper stock tubular core longitudinally disposed within the hub and of a length equal in length to the hub and its projections, a pair of all paper stock spool flanges, said flanges each having three triangularly disposed arcuately shaped slotted openings to receive the hub projections which project beyond the outer faces of the spool flanges, said flanges each having a central opening to receive the ends of the tubular core and which ends project beyond the outer faces of the spool fianges the same distance as the hub projections, and said hub projections and the projecting ends of the tubular core adapted tobe turned outwardly to form flanges engaging the outer faces of the spool anges for locking the spool anges on the hub projections and on the ends of the tubular core.

2. An all paper stock spool having, in combination, a spindle tube, a hub tube arranged in concentric relation with the spindle tube, spool anges on the ends of the tubes, the spool flanges each having a central opening through which the ends of the spindle tube project to be turned over to prevent outward displacement of the spool fianges relative to each other, the spool flanges each having three triangularly disposed arcuately shaped slotted openings through which correspondingly shaped projections on the ends of the hub tube forming shoulders therebetween extend sufliciently to be turned over against the outer faces of the spool flanges to prevent both outward and inward displacement of the spool flanges relative to each other and to prevent any possible chance of the spool flanges losing their parallel relationship.

ELMER G. ELLSTROM. WILLIAM P. HICKS. 

